Question

我遇到了一个问题，这里已经多次报道，但到目前为止还没有任何解决方案帮助我。

路线相当简单。它等待具有特定主题的电子邮件，从邮件中的参数创建PDF并将此PDF邮寄回发件人。

当我在Eclipse中作为Junit测试用例启动路径时，它就像一个魅力，但在Linux服务器上的Tomcat中运行它会崩溃＆＃34; javax.mail.MessagingException：缺少起始边界＆＃34;当它尝试发送包含PDF附件的电子邮件时。

*）本地测试环境： Tomcat 8.0.5，Windows 7，Java 1.8.0_20，Camel 2.14.0

*）服务器环境： Tomcat 8.0.12，Ubuntu Server 14.0.1。 LTS，Java 1.8.0_20，Camel 2.14.0

*）我已尝试过什么： - 使用较新版本的mail.jar（通过升级到当前的Camel版本） - 将mail.jar，activation.jar放入Tomcat lib - 设置各种mail.mime.multipart.XXX属性所有版本和组合都不同=＆gt;没有成功。

在路由代码，处理器和堆栈跟踪之下。实际上在这条路线上没什么了不起的......

任何想法???

路线：

from("imap://XXXXXXXXXXXXXXXX?" +
        "host=XXXXXXXXXXXXXXXXX&" +
        "password=XXXXXXXXXX&" +
        "delete=true&" +                    
        "consumer.delay=12000&" +           
"searchTerm.subjectOrBody=XXXXXXXXXXXXXXXXX&" + 
        "searchTerm.unseen=true"        
    )
.routeId(ROUTE_ID)
.process(attachmentProcessor)

.setHeader("to", simple("${in.header.from}")) 
.setHeader("from", simple("XXXXXXXXXXXXXXXXX"))
.setHeader("subject", simple("XXXXXXXXXXXXXXXXX"))
.setBody(simple("XXXXXXXXXXXXXXXX"))
.to("smtp://XXXXXXXXXXXXXXXXX")
.log(mailMessage);
;

处理器的一部分：

pdfUtil.generateLabels(tempDirPath, year, sequenceNumberStart, numberOfPages);
  exchange.getIn().addAttachment(fileName, new DataHandler(new FileDataSource(tempDirPath)));

可怕的例外......： - （

javax.mail.MessagingException: Missing start boundary
        at javax.mail.internet.MimeMultipart.parsebm(MimeMultipart.java:882)
        at javax.mail.internet.MimeMultipart.parse(MimeMultipart.java:503)
        at javax.mail.internet.MimeMultipart.updateHeaders(MimeMultipart.java:417)
        at javax.mail.internet.MimeBodyPart.updateHeaders(MimeBodyPart.java:1354)
        at javax.mail.internet.MimeBodyPart.updateHeaders(MimeBodyPart.java:1021)
        at javax.mail.internet.MimeMultipart.updateHeaders(MimeMultipart.java:419)
        at javax.mail.internet.MimeBodyPart.updateHeaders(MimeBodyPart.java:1354)
        at javax.mail.internet.MimeMessage.updateHeaders(MimeMessage.java:2107)
        at javax.mail.internet.MimeMessage.saveChanges(MimeMessage.java:2075)
        at org.apache.camel.component.mail.DefaultJavaMailSender.send(DefaultJavaMailSender.java:118)
        at org.apache.camel.component.mail.MailProducer.process(MailProducer.java:56)
        at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
        at org.apache.camel.processor.SendProcessor$2.doInAsyncProducer(SendProcessor.java:143)
        at org.apache.camel.impl.ProducerCache.doInAsyncProducer(ProducerCache.java:307)
        at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:138)
        at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)
        at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:398)
        at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
        at org.apache.camel.processor.Pipeline.process(Pipeline.java:118)
        at org.apache.camel.processor.Pipeline.process(Pipeline.java:80)
        at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:105)
        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:87)
        at org.apache.camel.component.mail.MailConsumer.processExchange(MailConsumer.java:287)
        at org.apache.camel.component.mail.MailConsumer.processBatch(MailConsumer.java:213)
        at org.apache.camel.component.mail.MailConsumer.poll(MailConsumer.java:119)
        at org.apache.camel.impl.ScheduledPollConsumer.doRun(ScheduledPollConsumer.java:187)
        at org.apache.camel.impl.ScheduledPollConsumer.run(ScheduledPollConsumer.java:114)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)

Answer 1

可能的解决方案：

见Missing start boundary Exception when sending messages with an attachment file in Tomcat。解决方案建议检查类路径。
请参阅Missing start boundary Exception when reading messages with an attachment file。解决方案建议设置属性mail.mime.multipart.ignoreexistingboundaryparameter：
```
System.setProperty("mail.mime.multipart.ignoreexistingboundaryparameter", "true");
```

我希望它有所帮助。

Answer 2

我遇到了这个问题。该问题是由在交换机上的In消息（边界，mime类型等）上设置的入站imap标头引起的，当您尝试发送邮件时，这会使SMTP服务器混淆。

在attachmentProcessor中使用Out消息代替in生成的正文。这会创建一条新消息，从组件

中删除IMAP中的所有标头等

例如：

       .process(new Processor() {   
            @Override
            public void process(Exchange exchange) throws Exception {
                exchange.getOut().setBody("here's the resulting message");
            }
        })

MessagingException：发送带附件的邮件时缺少开始边界

2 个答案: